The interchangeable Fitness Cables, along with the Smart Quick Switch Handles, allow users to create their own resistance systems to strengthen and tone from head to toe. Use different cables for different exercises and ranges of motion or move up to the next resistance level as your strength increases. The cables are multi-layered so they feel better and last longer than common extruded bands. The Fitness Cables are all 5 feet long and weigh only 1lb. 10lb is teal. 20lb is purple. 30lb is pink. 40lb is magenta. 50lb is orange. 60lb is red. 70lb is yellow. 80lb is green. 90lb is blue. 100lb is black. Handles sold separately.